Are you going to do the extension to San Jose, too? Or are you doing retro?
I will be doing the extension to San Jose, included. I don't have any official track maps from my BART source, but I do have a rough outline of the planned alignment (underneath Lake Elizabeth, and then paralleling the UP line for much of the way). The official VTA and BART websites have been helpful in that regard. When the extension opens in September, I'm willing to compensate anyone who is willing to get photos and rough drawings (if any interlockings exist) of the route. I'm still in the market for someone to take photos and videos of the current system, if anyone who lives in the Bay Area wants to make some extra money. PM me?
For right now though, keeping with the times, the official beta release at the end of the summer will feature only the current system, as I have zero details on eBART, or the extension to Livermore. There are a lot of interesting things being floated around however: An in-fill station at 30th St in SF, a split line following I-680 between Dublin and Walnut Creek, and if (now it's a question of when) CalTrain goes under within the next 5-10 years, using that system's alignment to get more West Bay/Peninsula customers; an interesting side note to the CalTrain option is another for a second TBT that'll feed into the Transbay Terminal, which could finally see a BART line (or lines) extended into other parts of SF. (I've got my money on a Geary Blvd line, and a line splitting from DC going up 19th Ave to Marin County, but a man can dream, lol).
I'll be detailing the area around Oakland over the next week in preparation for an Oakland Core video. Right now due to better handling and cab views, I'll be using NYCTA subway cars to mimic the BART system (R46s and R40 Slants with custom destination signs); it gets annoying feeling like I'm riding on the floor of the tracks

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Thanks for the support of the resurrected project! It will not become vaporware. We're 1/4 of the way done with the system! A moment to celebrate!
-A :wave:
P.S. I know nothing about Freight, and am running the latest patch for TS12. I am open to what sorts of cars run on the SP & UP lines, as they'll be part of the scenery for the entirety of the EL line in West Oakland, all the way down to Fremont- Milpitas/Berryessa